Manual MPA 5111 - Valve de gaz · Manual MPA 5111 Nr. 254 722 - GB Edition: 02.14 GB. ... Fuse MPA...

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ManualMPA 5111

Nr. 254 722 - GB

Edition: 02.14 GB

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Table of Contents

1 Short description ..................................................................................................................................................4

2 Accessories ...........................................................................................................................................................4

3 Classification according to EN298 ......................................................................................................................4

4 Approvals ...............................................................................................................................................................4

5. Technical data .......................................................................................................................................................55.1 General information ..............................................................................................................................................55.2 Outputs .................................................................................................................................................................55.3 Inputs ....................................................................................................................................................................65.4 Extension module .................................................................................................................................................6

6 Connection diagram .............................................................................................................................................7

7 Description of the behaviour ...............................................................................................................................97.1 Unlocking function ................................................................................................................................................97.2 Special operating modes .....................................................................................................................................97.2.1 Operation without valve testing system (VPS) ....................................................................................................97.2.2 Operation with valve testing system ...................................................................................................................97.2.3 Operation with reduced pre-aeration time ........................................................................................................147.2.4 Operation with ignition gas flame .....................................................................................................................147.3. Special setting options .......................................................................................................................................147.3.1 Different types of the air pressure detector monitoring .....................................................................................147.3.2 Different types of the temperature controller default or heat request ................................................................147.3.1 Different types of the modulation degree default ..............................................................................................147.3.4 Waiting program with open safety chain or lack of gas on the GDWVPS ..........................................................147.5 State description .................................................................................................................................................15

8 Parameters ...........................................................................................................................................................198.1 P1x General parameters .....................................................................................................................................19

8.2 P2x - Fan ............................................................................................................................................................238.3 P3x Stepped motor ............................................................................................................................................268.4 P4x - VPS ............................................................................................................................................................288.5 P5x - Additional valve ..........................................................................................................................................298.6 P6x - Startup .......................................................................................................................................................308.7 P7x - Operation ...................................................................................................................................................318.8 P8x - Switch-off ...................................................................................................................................................338.9 P9x - Waiting program .........................................................................................................................................348.10 Internal parameters ...........................................................................................................................................358.11 Parameter record and stick for continuous run ..................................................................................................36

9 Curve settings/modulation degree ....................................................................................................................379.1. Stick and VisionBox ............................................................................................................................................379.2 Definition of terms ...............................................................................................................................................389.2.1 Burner capacity ................................................................................................................................................389.2.2 Modulation degree ...........................................................................................................................................389.2.3 Curve point ......................................................................................................................................................389.2.4. Special point ...................................................................................................................................................38

10 Error overview ...................................................................................................................................................3910.1 Errors from processor 2 ....................................................................................................................................39

10.2 Error from the basic system (0x01 to 0x3F) ................................................................................................3910.3 Error from the extended functions (0x40 to 0x9F) .............................................................................................4010.4 Error from the application (from 0xA0) ..............................................................................................................41

11 Display unit ....................................................................................................................................................... 4311.1 Overview display modes ...................................................................................................................................4311.2 Key assignment MPA 5111 and MPA 5112 .......................................................................................................4411.4 Operational status display MPA5111 ................................................................................................................4511.6 Error display ......................................................................................................................................................46 Pr

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11.7 Information display ............................................................................................................................................4711.8 Service display ..................................................................................................................................................4811.9 Parameterisation display ...................................................................................................................................4911.9 Parameterisation display ...................................................................................................................................5011.10 Reset display ..................................................................................................................................................5111.11 Error memory display ......................................................................................................................................5311.12 Password entry parameter record stick ...........................................................................................................54

12 VisionBox ...........................................................................................................................................................55

13 Flame detector...................................................................................................................................................56

14 Stepped motor ...................................................................................................................................................5714.1 Overview of the possible stepped motor types ..................................................................................................5714.2 Reference point "Standard" ...............................................................................................................................5714.3 Reference point "Exchanged" ...........................................................................................................................5714.4 Mathematical angle positions............................................................................................................................5814.5 Wiring diagram SAD15Power supply ................................................................................................................5914.6 Power supply of the stepped motors .................................................................................................................60

15 Time diagram ............................................................................................................................................... 62-63

Appendix

Appendix A Versions and variantsAppendix B Parameter overview

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1 Short descriptionMicroprocessor-controlled burner con-trol system for intermittent operation or continuous operation for controlling and monitoring pneumatically modulating fan-assisted gas burners with speed-regulated or controlled fan and power controller input.

Extension modules for:• analogue inputs/outputs• Stepped motor• Continuous operation

2 Accessories• MPA-Extension module / Param-

eter record-Stick• Flame monitoring system• Display unit• VisionBox

3 Classification according to EN298According to the programming, the following classifications are possible:

• FBLLBB• FBCLBB• FMLLBB• FMCLBB

4 ApprovalsEC-type examination certificate according to EC-gas appliances directive

CE number: CE 0085 BT 0056

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25.1 General informationRated voltage 230 V AC -15 % ... +10 %Frequency 50 ... 60 HzFuse MPA 5111 6.3 A slow-blow fuse or 10 A fast-blow fuse, integrated,

exchangeableType of protection IP 20Ambient temperature 0 °C +60 °CHumidity DIN 60730-1, no dewing admissibleElectrical connection Correct phase sequence and protective earth conductor according to the wiring dia-

gram Mounting position as desiredDimensions approx. 200 x 105 x 115 mm

The admissible cable length to the display is max. 3 mThe admissible cable length to the stepped motor is max. 3 m

5. Technical data

5.2 OutputsDesignation Safety-

relatedType of output Electrical data MPA

5111Extension Module

Additional valve Y1 ● Relay contact 230 V AC / 2 A (∑ < 5 A) ●Valve Y2 ● Relay contact 230 V AC / 2 A (∑ < 5 A) ●Valve Y3 ● Relay contact 230 V AC / 2 A (∑ < 5 A) ●Spark generator ● Relay contact 230 V AC / 3 A (∑ < 5 A) ●Fan Relay contact 230 V AC / 4 A ●PWM 1 (for ex. fan)

PWM 24-31 V DC / 4 kHz ●

Fused mains power supply

Main volltage 230 V AC / 4 A _ ●

Operation display Internally via V2 230 V AC / 1 A (∑ < 5 A) ●Fault output Relay contact 230 V AC / 1 A ●Supplyflame detector

Internally via fan

230 V AC / 0.1 A ●

PWM 2 (e.g. 0...10 V)

for example analogue output

for example 0...10 V _ ●

PWM 3 (e.g. 4...20 mA)

for example analogue output

for example 4...20 mA _ ●

Stepped motor Plug ●Display Plug ●TWI communica-tion

Plug ●

Cable length max. 10 mThe sum of the currents of all safety-related consumers must not exceed 5 A!

The sum of the currents of all consumers must not exceed 6.3 A (10 A)

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5.3 InputsDesignation Safety-

relatedType of input Electrical data MPA

5111Extension Module

Flamedetector

● Ionisation Threshold value: approx. 1.2 µA

●

Air pressureswitch

● Switching contact (potential-free)

24V DC / 10 mA ●

Gas pressuredetector

● Switching contact (potential-free)

24V DC / 10 mA ●

Gas pressuredetector VPS

● Switching con-tact (potential-free)

24V DC / 10 mA ●

Safety chain ● Switching contact 230V AC / max. 10 A ●Temperature controller

Switching contact 230V AC ●

Power controller +/-

Switching contact 230V AC ●

Fanspeed

Hall sensor 24V DC ●

Exchangeable backup fuse

Fuse 6.3 A slow-blow or 10 A fast-blow

●

Remote unlocking Switching contact 230V AC ●Analogue set-point

Plug ●

Cable length max. 10 m

Integrated function MPA-EM1/1 MPA-EM1/2 MPA-EM1/3 MPA-EM1/4Display ● ● ● ●TWI ● ● ● ●Parameter record-stick - ● ● ●0...10 V input - - ● ●0...10 V output - - ● ●4....20 mA input - - ● -4...20 mA output - - ● -Stepped motor output ● ● ● ●{component protection / encapsu-lated version}

● ● ● -

Type of wiring diagram A A A AP18: Operating mode PWM output 0 0 11 8P27: Modification method Modulation 0,1 0,1 0,1,2,3 0,1,2,3

5.4 Extension moduleequipped with analogue inputs and outputs (e.g. MPA-EM1/3):

Analogue outputs0/2...10 V, load >= 2 kilo ohms0/4...20 mA, load <= 500 kilo ohms(Attention! The output must not con-nected to GND!)

Analogue input0/2...10 V, Imax = 0.5 mA or0/4...20 mA, apparent ohmic resist-ance R <= 500 kilo ohms

The inputs and outputs are NOTelectrically isolated from the mains!

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6 Connection diagram

19

12

20

υ

υ

Fan motor

Spark generator

Safetychain

GDW min.

GDW VPS

Airpressure switch

Operation

Fault

Controller chain

Mains~(AC) 230 V50/60 Hz

Power controller

Remote unlocking 230 V

Fuse

Fan

Ionisation

variable

Display TWI

MPA5111

Attention!The designations Y1, Y2 and Y3 refer to the slots of the MPA.

Attention!Output "operation" is internally con-nected to V2, i.e. it is also active in the states such as valve check.

Attention!F1 is only necessary if no internal backup fuse is integrated!

Extension moduleEMX/Y

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Wiring diagram for extension module

Additional connection options are provided in the "variable area".The functions and pin assignments are different depending on the EM variant.

The extension modules EMX/Y are plug-in printed circuit boards.For the configuration the EM1/1 is the minimum requirement.Old extension modules have a slot for display connection and a slot for PC/laptop connection via VisionBox for system configuration.

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7 Description of the behaviour

7.1 Unlocking functionIf the MPS is locked (state 0), it can be unlocked by pressing the unlock key. In order to distinguish the func-tion from potential EMC interfering impulses, the key must be kept de-pressed for at least 1/4 second.The same applies for the 230 V un-locking.

According to DIN EN 14459 (annexe J), the number of possible unlock-ings are limited to 5 in 15 minutes, that means the automatic system denies further unlockings if the MPA has been unlocked more than 5 times within a short time period. Only after a waiting time during which the MPA is provided with power, it is possible to unlock the MPA again.

The waiting time is 15 minutes or 3 minutes for each unlocking

Extended unlockingThe described limitation to 5 unlock-ings in 15 minutes can be reset using the "Extended unlocking". To do this, the unlock key must be pressed for at least 5 s (max.. 10 s) (after 5 s, the dis-play begins to flash).

The "Extended unlocking" is active in all operational states of the MPA, that means that a safety cut-off with restart of the MPA in operation can be carried out via the "Extended unlock-ing" also in the presence of a flame.

230 V unlocking input!

7.2 Access levelWrite access to MPA is defined on dif-ferent access levels.Each parameter is assigned to a cer-tain access level. In order to modify a parameter, MPA must be at the as-signed or higher level.If the access level is not sufficient to modify a parameter, the VisionBox reports it, or a message is output on the MPA display prompting the user to enter the valid password. At higher levels, the users must press a key to confirm that they are "on site". For this purpose the display is flashing for 30 s if a key is pressed; otherwise, the MPA remains at the previous level.To change the access level, the cor-rect password must be entered in the "VisionBox → Settings MPA → Access level". The access level is automati-cally reset after 5 hours or after power failure. Exception: If the automatic gas

burner performs a restart during these 5 hours, for example due to an error, these 5 hours for the current access level are counted again from the be-ginning.

NOTE: After completing configuration of the automatic gas burner it is rec-ommended to reset the access level immediately manually (display) by means of the shortcut - and ←, setting "E1" (see chapter Display unit).

7.3 Parameter changeParameter types:1-bit parameter (U1) - setting 0 and 1 (displayed as ON/OFF), no limits8-bit parameter (U8) - value setting within variable limits16-bit parameter (U16) - value setting within variable limits.

A parameter can be modified on the display (see Appendix BMA_display) of MPA or via the VisionBox software on a PC.

In order to change a parameter, the access level assigned to the param-eter must be set, see chapter Access level.

The value must be within the variable limits; a value outside these limits is not possible or it is rejected by the MPA. Experts can change the variable up-per and lower limits, usually it requires a higher access level than the level assigned to the parameter value. The variable limits may only be changed by means of VisionBox, not on the MPA display. The variable limits are restrict-ed by means of fixed limits. The vari-able limits cannot be changed outside of these limits. These fixed limits can-not be changed.There are parameters which cannot be changed during normal operation, see Appendix Parameter table. To change these parameters it is necessary to switch to the state "Waiting for heat re-quest".The parameter stick (extension mod-ule) monitors selected parameters dur-ing start-up (see 8.11)

7.4 Special operating modes 7.4.1 Operation without valve check systemIf the valve check during start-up (P40) and the valve check after a regular switch-off (P41) are inactive, a simul-taneously activated double gas valve can also be used instead of two indi-vidual gas valves. This double valve must be activated using the valve output V2 of the MPA since V1 opens before the safety time for the start-up has elapsed!Note: Even if P46 is "active", the input GDWVPS is still monitored!

7.4.2 Operation with valve check systemIf the valve check is active during start-up (P40), it will be carried out during each start-up. The time required for the valve check is not included in the Adjustable pre-aeration time (P60 and P61) and, therefore, it can be re-duced.If the valve check after a regular switch-off (P41) is active, it will be car-ried out after every regular switch-off.

Additionally, a valve check during start-up is carried out if the valve check after the last regular switch-off has not been successful, if the automatic sys-tem has been switched off by a safety shutdown or if a power failure has oc-curred since the last switch-off.

If the valve tightness test has been completed successfully and P41 is in-active, the tightness test and the state "Pre-aeration B" are skipped during the next start-up (see section "Opera-tion with reduced pre-aeration time").

Level Designa-tion

Key con-firmation required

1 Dungs yes2 OEM Ex-

pertyes

3 OEM yes4 Service yes5 Operator no

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For a correct evaluation of the tests carried out, the parameters P40 to P46 must be correctly calculated and set.

ttest V1 [s] Test time for V1ttest V2 [s] Test time for V2tP43 [ ] to be entered in P43tP45 [ ] to be entered in P45pe [mbar] Gas inlet pressurepS1 [mbar] Increasing switching pressure

(set pressure at the controller +15 % + switching difference)

pS2 [mbar] Falling switching pressure(set pressure at the controller -15 %)

patm [mbar] Atmospheric pressure = 1013 mbars

VP [dm3] Test volume between the valves to be monitored

QP [dm3/h] Admissible leakage rate according to EN1643. The leakage rate corresponds to 0.1 % of the burner's gas consump-tion at maximum burner load, but at least 50 dm3/h. A limit value of 200 dm3/h is recommended by DUNGS!

S [ ] Safety factor, DUNGS recom-mends triple safety

ttest V1 = ------------------------------- * 3600 s/h * Spe * VP * In (pe / (pe - pS1))

patm * QP

ttest V2 = ------------------------------- * 3600 s/h * Spe * VP * In (pe / pS2)

patm * QP

Formula to calculate the testtimes for V1 and V2:

tP43 = ttest V1 * 16/stP45 = ttest V2 * 16/s

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ttest V1 = ------------------------------------------------------------------------ * 3600 s/h * 3 = 1.84 s20 mbar * 0.44 dm3 * In (20 mbar / (20 mbar - 12.5 mbar))

1013 mbar * 50 dm3 / h

ExampleA DMV-D(LE) 525/11 with 20 mbars inlet pressure is used. In this appli-cation, the admissible leakage rate according to EN1643 is3 / h. The gas pressure detector is set to 10 mbars.

pe = 20mbarsVP = 0.44 dm3see Test volume table, page 12QP = 50 dm3 / h (determined according to DIN EN 1643)pS1 = 10mbars + 15 % + 1mbar switching difference = 12.5 mbarspS2 = 10mbars - 15 % = 8.5 mbarsS = 3 (recommendation DUNGS)

tP43 = 1.84 s * 16/s = 29.5

To be entered in P43: 30 or more (corresponds to 1.88 s)

ttest V2 = ------------------------------------------------------------------------ * 3600 s/h * 3 = 1.61 s20 mbar * 0.44 dm3 * In (20 mbar / 8.5 mbar)

1013 mbar * 50 dm3 / h

tP45 = 1.61 s * 16/s = 25.7

To be entered in P45: 26 or more (corresponds to 1.63 s)

Valve/valves leaking

1. Switch off system2. Check valve V1 and/or V2 for leakage3. If leaking, replace valve V1 and/or V2.

Attention! In case of interference suppression, always observe the application- and country-specific requirements as well.

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Type Nominal diameterRp / DN

Test volume

DMV-D(LE) 503/11 Rp 3/8 0.03 lDMV-D(LE) 507/11 Rp 3/4 0.10 lDMV-D(LE) 512/11 Rp 1 1/4 0.24 lDMV-D(LE) 520/11 Rp 2 0.24 lDMV-D(LE) 525/11 Rp 2 0.44 lDMV-D(LE) 5040/11 DN 40 0.38 lDMV-D(LE) 5050/11 DN 50 0.39 lDMV-D(LE) 5065/11 DN 65 0.69 lDMV-D(LE) 5080/11 DN 80 1.47 lDMV-D(LE) 5100/11 DN 100 2.28 lDMV-D(LE) 5125/11 DN 125 3.56 lDMV-1500-D Rp 2 0.44 lDMV-...(DLE) –65 DN 65 1.47 lDMV-...(DLE) –80 DN 80 2.28 lDMV-...(DLE) –100 DN 100 3.55 lMB-D(LE) 403 Rp 3/8 0.04 lMB-D(LE) 405 Rp 1/2 0.11 lMB-D(LE) 407 Rp 3/4 0.11 lMB-D(LE) 410 Rp 1 0.33 lMB-D(LE) 412 Rp 1 1/4 0.33 lMB-D(LE) 415 Rp 1 1/2 0.24 lMB-D(LE) 420 Rp 2 0.24 lMB-ZRD(LE) 405 Rp 1/2 0.11 lMB-ZRD(LE) 407 Rp 3/4 0.11 lMB-ZRD(LE) 410 Rp 1 0.33 lMB-ZRD(LE) 412 Rp 1 1/4 0.33 lMB-ZRD(LE) 415 Rp 1 1/2 0.24 lMB-ZRD(LE) 420 Rp 2 0.24 lMB-VEF 407 Rp 3/4 0.11 lMB-VEF 412 Rp 1 1/4 0.33 lMB-VEF 415 Rp 1 1/2 0.24 lMB-VEF 420 Rp 2 0.24 lMB-VEF 425 Rp 2 0.44 lMBC 300 Rp 3/4 0.05 lMBC 700 Rp 1 1/4 0.61 lMBC 1200 Rp 2 2.05 lMBC 1900 DN 65 1.47 lMBC 3100 DN 80 2.28 lMBC 5000 DN100 3.55 l

Test volume of the DUNGS Multiple actuators MB-D ..., MB-ZR..., MB-VEF..., DMV-...., MBC....

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Determination of the test volumes for DUNGS Single solenoid valves.../5

Nominal diam-eterRp / DN

Test volumes = volume V1output side + V2input side + pipeline

direct 0.5 m 1.0 m 1.5 m 2.0 mRp DN Rp DN Rp DN Rp DN Rp DN

Rp 3/8 0.01 l 0.06 l 0.11 l 0.16 l 0.21 lRp 1/2 0.07 l 0.17 l 0.27 l 0.37 l 0.47 lRp 3/4 (DN 20) 0.12 l 0.27 l 0.42 l 0.57 l 0.72 lRp 1 (DN 25) 0.20 l 0.45 l 0.70 l 0.95 l 1.20 lRp 1 1/2 / DN 40 0.50 l 0.7 l 1.10 l 1.35 l 1.70 l 2.0 l 2.20 l 2.65 l 2.80 l 3.3 lRp 2 / DN 50 0.90 l 1.2 l 1.90 l 2.2 l 2.90 l 3.2 l 3.90 l 4.2 l 4.90 l 5.5 lDN 65 2.0 l 3.7 l 5.3 l 7.0 l 8.6 lDN 80 3.8 l 6.3 l 8.8 l 11.3 l 13.8 lDN 100 6.5 l 10.5 l 14.4 l 18.4 l 22.3 lDN 125 12.0 l 18.2 l 24.3 l 30.5 l 36.6 lDN 150 17.5 l 26.5 l 35.2 l 44.1 l 52.9 lDN 200 46.0 l 61.7 l 77.4 l 93.1 l 108.9 l

Typical values for the leakage rate

DN Test volume [litres]direct / 2 m

~ Burner capacity [kWh adm. leakage rate[dm3 / h]0.1 % of the burner capacity or 50 dm3 / h

5 mbars 30 mbars20 0.12 / 0.72 110 240 5025 0.20 / 1.20 170 370 5040 0.50 / 3.30 310 710 50-7150 0.90 / 5.20 500 1100 50-11065 2.00 / 8.60 910 2000 91-20080 3.80 / 13.8 1250 2900 125-290

100 6.50 / 20.0 2050 4600 205-460125 12.5 / 20.0 3500 7700 350-770

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7.4.3 Operation with reduced pre-aeration timeUnder specific circumstances, the MPA can be started with a reduced pre-aeration time. For doing this, the valve tightness test after a regular switch-off (P41) must have been suc-cessful.Settings for the operation without re-duced pre-aeration:a) Pre-aeration time A (P60): desired

duration of the pre-aerationb) Pre-aeration time B (P61): 0 (= is

never carried out)

The common pre-valve must be con-nected to V1. The ignition gas valve is connected to the output V2 of the MPA and the main gas flame to the freely configurable additional valve output.

V1

V2

GDWVPS

V Zusatz

Hauptgas

Zündgas

Setting for the operation with reduced pre-aeration time:a) Pre-aeration time A (P60): 0 or

pre-aeration time that is always required

b) Pre-aeration time B (P61): desired duration of pre-aeration if the valve tightness test was NOT fin-ished successfully. This duration is ignored if the valve tightness test was successful after the last regular switch-off (duration 0)!

7.4.4 Operation with ignition gas flameBasically, the MPA can be used for the operation with ignition gas flame.

Attention! There is only one input for flame monitoring (ionisation).

Attention!The additional valve output must be configured according to the desired behaviour, that means that the mo-ment for opening (P50 and P52) and closing (P51 and P53) must be de-fined via the respective parameters.It is useful to open the main gas valve

shortly after the state has switched to the stabilisation time B. So the igni-tion gas flame can be stabilised dur-ing the stabilisation time A, then, after the state has switched to the stabili-sation time B, the fan power can be increased and, with a delay of a few seconds (P52), the main gas valve can be opened (for ex. if 50% of the typical duration time to reach the new fan power has been elapsed).

7.5 Special setting options

7.5.1 Different types of the air pressure detector monitoringSee section 8 "Parameter descrip-tion" - P14.

7.5.2 Different types of the tem-perature controller default or heat requestSee section 8 "Parameter descrip-tion" - P15.

7.5.3 Different types of the modu-lation degree defaultSee section 8.7 "Parameter descrip-tion" - P72.

7.5.4 Waiting program with open safety chain or lack of gas on the GDWVPSSee section 7.5 State 36: "Waiting program".

Ignition gas

Main gas

additional

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7.6 State descriptionMPA 5111State xx Designation Description

00 Error or initialisation The automatic control system is in the initialisation phase (e.g. reference run of the stepped motor) or an error is ac-tive. If an error is active, the display shows an error message and indicates the current fault (e.g. "F 11") instead of the state number 00.

01 Waiting for heat request The automatic control system is ready for operation but there is no heat request.

02 Adjustment parameter record to stick

If the function parameter record stick (P10) is active, the adapted parameter record is compared to the settings in the MPA and, if necessary, the data are copied to the MPA after a password has been entered. If necessary, the pass-word must be entered via the display. For this, a small "c" flashes.

03 Idle state control fan and stepped motor

The system waits until the fan and the stepped motor are in the OFF position If the fan has not completely stopped after at least 2 minutes and/or the stepped motor has not yet reached its position, the MPA is switched off and a re-spective error message is displayed.

04 Idle state control LDW (air pressure detector)

Depending on the operating mode of the air pressure de-tector (P14), it is checked if the air pressure detector re-ports "no air pressure"..

05 Watchdog loading phase The safety-related watchdog -circuit is activated.06 Startup fan and stepped motor The system waits until the stepped motor has moved to its

nominal pre-aeration position and the fan has reached its nominal pre-aeration speed.

Attention! The fan control does not check the feedback of the fan!

07 Waiting for air pressure Depending on the operating mode of the air pressure de-tector (P14), the system waits until the air pressure detec-tor indicates the air pressure.

08 VPS A - Decision In this state the decision is made if a valve test during star-tup must be carried out. See also section 7.3.2 Operation with valve testing system. If no valve test must be carried out, the state "Pre-aeration A" is activated.This state lasts only 1/16 of a second.

09 VPS A - Empty the area between the valves

V2 is opened (P42) in order to empty the area between the valves and to compensate the possibly existing gas pressure.

10 VPS A - Test time V1 In the defined test time (P43), no gas pressure may be built up in the area between the valves otherwise the valve 1 is considered as "leaking".

11 VPS A - Fill the area between the valves

V1 is opened (P44) in order to fill the area between the valves with gas pressure.

12 VPS A - Gas pressure detection This states lasts only one-eighth of a second and serves for the monitoring of the gas pressure detector GDWVPS.

13 VPS A - Test time V2 The gas pressure may not drop within the defined test time (P45) otherwise the valve 2 is considered as "leaking". Note: When the MPA with ignition gas flame is used, also the additional valve (= main gas flame) may be leaky al-though the error message refers to V2.

14 Pre-aeration A This state provides a sufficient pre-aeration. The defined duration (P60) is observed for every startup.

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15 Pre-aeration B This time is a second pre-aeration time. Contrary to the "Pre-aeration A" state, this state is skipped if the last switch-off of the MPA was a regular switch-off with successful valve tightness test. Moreover, no power failure must have been occurred since the last switch-off.

This state can be used, for example, to realise a "Reduced pre-aeration" whose duration (P61) is defined in the state "Pre-aeration B" and the duration of the "Pre-aeration A" (P60) is set to 0 seconds or to the minimum required pre-aeration time.Please observe: The actual pre-aeration time increases by the time for the valve tightness tests (P40 to P45) in the startup phase, if they are activated.

See also section 7.2.3 "Operation with reduced pre-aera-tion".

16 Ignition position The MPA moves to the special modulation point "Ignition position".

This state lasts as long as the stepped motor has reached its new position and the fan works with the set speed. The fan monitoring of the MPA waits until the fan has swung into the regular operation (detection of upper and lower limit in the tolerance range).

17 Gas detection GDWVPS The valve 1 is opened so that a gas pressure can be built up between the valves and the GDWVPS can detect a gas pressure (P62). If both types of valve test (startup P40 and switch-off P41) are deactivated, the GDWVPS is not moni-tored! A bridge is not necessary.

18 Pre-ignition The ignition is already activated here (P63) without open-ing valve 2. The valve output 1 is already active!

19 SZA - Ignition During this period (P64), the ignition remains active and valve 2 is open. The gas can flow now and a flame can be generated.

This state is 0.5 seconds shorter than the time set in P64 because the safety time for startup is divided in state 19 and 20!

20 SZA - Flame detection The ignition is deactivated 0.5 seconds before the end of the safety time for startup (P64) and the procedure for flame detection (ionisation input) is started. If an ionisation current is detected, the MPA reports a flame.

21 Stabilisation flame A The flame can be stabilised with the help of a configurable special modulation point. The duration of the stabilisation phase (P65) can be configured.

22 Stabilisation flame B Another special modulation point can be defined for this stabilisation phase (P66). When using the MPA with pilot burner, this state can be used to activate the main flame. The main gas valve (=additional valve) can be activated af-ter an adjustable time (P50 and P52) after the changeover to the state.See also section 7.4.4 Operation with ignition gas flame

23 Changeover to the standard mode The MPA leaves the current special modulation point and moves to the start simulation point of the standard mode (P67).

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24 Standard mode In this mode, the MPA can be modulated via several types (see P70 to P76, especially P72).

A voluntary switch-off after a defined time can be activated (P70). If this time is set to a maximum of 23 hours and 59 minutes, the MPA is in the intermittent mode. Continuous operation (≥ 24 h) is only possible using acon-tinuous operation stick, see section 8.11

25 Changeover after regular switch-off

This state can be used to define the modulation degree after a regular switch-off (see also P80 and P81).

Possible application: In order to avoid a switch-off when the system is under full load, this state can be used to reduce (or increase) the power to a defined value.

26 VPS B - Decision In this state the decision is made if a valve test must be carried out. See Operation with valve testing system.This state lasts only 1/16 of a second.

27 VPS B - Empty the area between the valves

V2 remains open (P42) in order to empty the area between the valves and to compensate the possibly existing gas pressure.

28 VPS B - Test time V1 In the defined test time (P43), no gas pressure may be built up in the area between the valves otherwise the valve 1 is considered as "leaking".

29 VPS B - Fillthe area between the valves

V1 is opened (P44) in order to fill the area between the valves with gas pressure.

30 VPS B - Gas pressure detection This states lasts only one-eighth of a second and serves for the monitoring of the gas pressure detector GDWVPS.

31 VPS B - Test time V2 The gas pressure may not drop within the defined test time (P45) otherwise the valve 2 is considered as "leaking". Note: When the MPA with ignition gas flame is used, also the additional valve (= main gas flame) may be leaky al-though the error message refers to V2.

32 Follow-up time During this time (P82), a flame signal may be present from the previous mode caused by e.g. existing residual gas in the combustion chamber. The external light monitoring is only started in the following state.

33 Post-aeration In this state, the post-aeration of the combustion chamber is carried out (P83).

In this state, no flame must be detected. Since the dura-tion of the state with the setting P83=0 is only a few milli-seconds, the MPA reacts also to external light if "no" post-aeration is configured.

34 Restart protection In this state, the temperature controller is not evaluated, that means if another heat request is sent or activated, the automatic is not restarted.

35 Lack of gas GDWMIN If the input GDWMIN of the automatic system is not closed, the automatic system waits in this state until the gas pres-sure is detected.

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36 Waiting program The MPA switches to this state if a lack of gas on the GD-WVPS (depending on P46) or an open safety chain has been detected during startup.

The MPA remains in this state for a certain waiting time and then carries out another restart test. The number of restart tests is configurable (P90).

The waiting time duration depends on the number of wait-ing times that have been executed before. The first time, the waiting time is 2 minutes, the second time 5 minutes and the third time 1 hour and afterwards a time duration defined by a parameter is applied. If the waiting time de-fined by a parameter (P91) is shorter than the firmly defined times of the first 3 restart tests, these are also reduced to the parameter-defined time.

The respective waiting time can be interrupted by setting the temperature controller to OFF (OFF depends on the operating mode in P15!).

The waiting program start from the beginning if the auto-matic systema) has been separated from the mains, b) has been unlocked orc) has reached the standard mode after a restart test.

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8 Parameters8.1 P1x General parameters

ParameterP1x

Designation Description Setting / Examples

P10 Parameter stick: ac-tive

Indicates if the parameter record stick is to be checked or copied, if necessary, during the restart phase. See also section 8.11 Stick for parameter record and continu-ous run.

Setting 0: Parameter stick deactivated

Setting 1: Parameter stick active

P11 Restartattempts

Here you can set the number of re-start attempts the MPA is allowed to be carried out before the fault switch-off is activated (state "Error").The anti-oscillation counter is reset to this value as soon as the MPA has reached the state "Standard mode" or the MPA has been unlocked.The number of restarts is internally counted by means of the anti-oscil-lation counter.

P12 Restartattempts due to a missing flame

The number of restart attempts (P11) can be limited here for the special case that no flame has been generated during the safety time.For this purpose, the restart coun-ter is internally implemented. The anti-oscillation counter as well as the restart counter are activated!

Example:P11 = 5, P12 = 1During the first start phase, no flame is generated → 1. Restart attempt → Error idle state control LDW → 2. Restart attempt → Error idle state LDW 3. Restart attempt After the third restart attempt LDW OK, there is still no flame Automatic burner control is locked.

P13 Restartattempts after the flame has gone out

The number of restart attempts (P11) can be limited here for the special case that a flame has gone out.For this purpose, also the restart counter is internally used. The anti-oscillation counter as well as the restart counter are activated!

Example:P11 = 5, P13 = 1Flame gone out during operation 1. Restart attempt Error Idle state control LDW 2. Restart attempt Error Idle state control LDW 3. Re-start attempt No flame is gener-ated after the third restart attempt LDW OK Automatic burner control is unlocked.

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ParameterP1x


P14 Operating mode LDW The LDW (air pressure detector) must be activated! It must be set in a way to guarantee an activation also if there is only a minimum power.

Basically, DUNGS recommends to use the operating mode 0. Excep-tions can partly be accepted. The LDW can be operated in 4 operat-ing modes.

Setting 0: The LDW is active and is moni-tored.

Setting 1:No idle state control is carried out. Otherwise, the LDW is permanent-ly active. Attention! Ifthe LDW is jammed or if there is a wire bridge there will be no error message dur-ing the startup phase!

Setting 2:The LDW is monitored only during startup, that means only to the state "Waiting for air pressure". In the fol-lowing state, an LDW which is not active does NOT result in an error message.

Setting 3:The LDW is monitored during the startup phase if the current modula-tion degree is higher than the start modulation degree in the standard mode. That means that, in case of small modulations, the LDW can switch-off without generating the error message "No air pressure" and deactivating the MPA.Moreover, the LDW is not moni-tored after the pre-aeration until the standard mode is reached and, in case of a regular switch-off, it is not monitored until the post-aeration is reached.Attention! This operating mode is only allowed, if the fan is controlled (internal plausibility check of the feedback signals).

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ParameterP1x


P15 Operating mode Temperature controller

The temperature controller can be operated in the following operating modes:

Setting 0: The temperature controller is al-ways switched OFF, independently of the hardware input

Setting 1: The temperature controller is al-ways switched ON, independently of the hardware input

Setting 2: The temperature controller is OFF, however, this operating mode must be defined again within one minute. Otherwise the automatic burner control switches to the setting 3. This can happen, for example, if the communication is interrupted.

Setting 3: The temperature controller is as-signed to the hardware input "Tem-perature controller".

Internal setting (cannot be changed) 4...255: These values are used for the time monitoring for the setting 2, that means that, if the parameter P15 is configured to the setting 2, the MPA changes this setting to values between 4 and 255 and reaches the setting 3 after 1 minute (cyclical decrementation).

P16 Parameter record: Customer ID

This parameter indicates the cus-tomer ID defined in the parameter record stick. This allows to assign a parameter record to a customer.

0 means "No parameter record found" or "Startup (state 2) not yet carried out".

The parameters P16 and P17 are read and updated during each star-tup (state 2). If no parameter stick was found, this value is 0. The val-ue is also 0 if no startup has been carried out since the last processor start, that means if the automatic burner control never has reached the state 2. This applies also for a processor start, for ex. after a safe-ty switch-off!

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ParameterP1x


P17 Parameter record: Record ID

This parameter indicates the record ID defined in the parameter record stick. This allows to distin-guish several parameter record versions of a customer.

0 means "No parameter record found" or "Startup (state 2) not yet carried out".

The behaviour is the same as de-scribed in P16.

P18 Operating mode PWM outputs

Using this parameter, the behav-iour of the outputs PWM2 and PWM3 can be changed in order to, for ex., activate analogue outputs correctly.

The external function activated by PWM2 and PWM3 are defined by the plugged-in extension module which allows to activate each of the two outputs by a digital signal (PWM for fan, frequency converter, ...) or by an analogue signal with 0...10 V or 4...20 mA.

The correct setting for P18 is indicated in the following tableSetting P18 Configuration PWM2 as: Configuration PWM3 as:

0 OFF OFF1 OFF PWM signal2 OFF Analogue 0...10 V3 OFF Analogue 4...20 mA4 PWM signal OFF5 PWM signal PWM signal6 PWM signal Analogue 0...10 V7 PWM signal Analogue 4...20 mA8 Analogue 0...10 V OFF9 Analogue 0...10 V PWM signal

10 Analogue 0...10 V Analogue 0....10 V11 Analogue 0...10 V Analogue 4....20 mA12 Analogue 4...20 mA OFF13 Analogue 4...20 mA PWM signal14 Analogue 4...20 mA Analogue 0...10 V15 Analogue 4...20 mA Analogue 4...20 mA

P18 Example: The extension mod-ule MPA-EM1/3 is equipped with a conversion from PWM2 to 0...10 V and with a conversion from PWM3 to 4...20 mA. The correct setting results from:P18 = 11 ( for MPA-EM1/3)

P18 Note If the configuration "4...20 mA" is selected for a voltage output, this corresponds to a voltage output of 2...10 V.

If the configuration "0...10 V" is selected for a current output, this corresponds to a current output of 0...20 mA.

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8.2 P2x - FanThe MPA51 controls the fan by means of PWM signal and evaluates a hall sensor signal delivered by the fan in form of a rotation speed. The number of feedback pulses per

8 Parameters8.2 P2x Fan

ParameterP2x

Designation Description Setting

P20 Fan: Control Indicates if the fan is controlled or regulated. For the regulation, a feedback signal to record the fan speed is required!

Setting 0: ControlSetting 1: Regulation

P21 Fan: Delay / ramp a) For fan control:This parameter is used to smoothen jumps of the fan activation signal (PWM signal).

b) For fan regulation:The desired fan behaviour can be reached by means of the KP and TN factors. However, jumps in the setpoint values for the fan can be slowed down via the ramp delay function.

Setting 0 means that even big jumps are immediately transformed. The bigger the set value the slower the PWM signal is adapted to its new nominal value in case of changes.

The value of the parameter should be set to 0.

rotations has to be indicated in P24. In case of wrong values in P24, the MPA calculates a wrong rotation speed!The MPA can control or regulate the fan (PI controller).

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ParameterP2x


P22 Fan: KP factor a) For fan control:This factor is only relevant if the fan is controlled!

b) For fan regulation:The Kp factor defines the effect of the difference between nominal value and actual value on the regu-lating value.

Kp is no proportional factor: • small Kp values result in a slow adaptation to the nominal value. • big Kp values result in a fast regu-lation, but can also create an over-shooting

Always observe the interaction be-tween the P and I part, that means that a separate consideration of Kp and Tn is not possible!

P23 Fan: TN factor a) For fan control:This factor is only relevant if the fan is controlled!

b) For fan regulation:The Tn factor defines the effect of the history, that means the accu-mulated difference between the nominal and the actual value (inte-gration), to the regulating value.

Tn is a division factor: • small Tn values result in a fast but more instable regulation. Reso-nance and swinging-up systems are the possible effects of wrong values. • big Tn factors stabilise the sys-tem.

Always observe the interaction be-tween the P and I part, that means that a separateconsideration of Kp and Tn is not possible!

P24 Fan: Pulses per rota-tion

a) For fan control:This value is only relevant if the fan speed is to be recorded! The recording has no influence on the behaviour of the MPA.

b) For fan regulation:The number of impulses per rota-tion provided by the fan must be set here.If an incorrect value is indicated, the determined speed is incorrectly calculated.

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ParameterP2x


P25 Fan: allowed toler-ance

a) For fan control: not relevantb) For fan regulation:Here the allowed deviation between the fan speed and the current nomi-nal speed is defined. If the speed has been outside this tolerance range for a longer time period, the MPA is switched off.

P26 Fan: Min. speed. a) For fan control:The minimum PWM activation can be defined. If this value is not reached, the fan does not work cor-rectly. Typically, a fan only works properly if the PWM signal reaches approx. 10 to 20 %. If this value is not reached, the fan begins to oscil-late or does not work.

If a fan activation lower than this value is calculated due to the set-tings in the curve segment, the MPA is switched off displaying a corresponding error message.

Attention! There is no direct rela-tion to the speed at a modulation degree of 100 %!

b) For fan regulation:A minimum speed can also be entered here If this value is not reached during the calculations from the curve segment, the MPA creates a corresponding error mes-sage.

Attention! There is no direct rela-tion to the speed at a modulation degree of 0 %!

P27 Fan: Max. speed a) For fan control:This parameter should be set to 100 %. If another value is entered here, this will influence the programmed values in the curve segment!

b) For fan regulation:Here, the maximum speed of the fan must be entered. A fan reaches the maximum speed if it is activated with 100% PWM and the air flow is blocked.

Attention! There is no direct rela-tion to the speed at a modulation degree of 100 %! (apply for adjust-ment a) and b))

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Possible types:Parameter value Configuration PWM2 as: Configuration PWM3 as:

0 No stepped motor –1 reserved –2 SAD 1.2 or SAD 3.0 (IP54) Standard / delivery position3 SAD 1.2 or SAD 3.0 (IP54) "changed" reference point4 SAD 1.5 or SAD 3.0 (IP40) *1 Standard / delivery position5 SAD 1.5 or SAD 3.0 (IP40) *1 "changed" reference point6 SAD 15 Standard / delivery position7 SAD 15 "changed" reference point8 SAD 1.2 WG (Q3) or SAD 3.0 WG (Q3) Standard / delivery position9 SAD 1.2 WG (Q3) or SAD 3.0 WG (Q3) "changed" reference point

10 SAD 10 WG (Q3) Standard / delivery position11 SAD 10 WG (Q3) "changed" reference point

Attention!A stepped motor must only be con-nected to the MPA or separated from the MPA if it is disconnected from the mains.The change of this parameter only becomes effective after a restart of the MPA. The MPA can be restarted by interrupting the power supply or by means of the "Extended unlock-ing" (press the unlock key for 5 seconds).

If this parameter is programmed for a specific stepped motor type, this stepped motor must be connected. An incorrect configuration of this parameter can lead to an overspeed-

ing which may destroy the incorrectly configured stepped motor!

If the selected stepped motor is not found, it is not possible to change the stepped motor via the display of the MPA51xx. But there is the possibility to correct the parameters using the VisionBox.

Further information can be found in the annex 13: "Stepped motors".

*1 Attention!The stepped motors SAD 1.5 and SAD 3.0 with IP40 have another step width.If the nominal value is 90° (Vision-Box), these stepped motors have an actual angle of 93.37°, that means that all angle indications referring to nominal and current position must be converted to the actual position us-ing the factor 0.963957. Vice versa, the factor 1.03739 is applicable.

8 Parameters8.3 P3x Stepped motor

ParameterP3x


P30 Stepped motor: Type

Selection Stepped motor type

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8 Parameters8.3 P3x Stepped motor

ParameterP3x


P31 Stepped motor: allowed tolerance

This value defines the highest al-lowed deviation between the nomi-nal value and the actual value of the determined stepped motor without activating a safety switch-off

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8 Parameters8.4 P4x - VPS

ParameterP4x


P40 VPS: active during startup

Setting 0: The valve test is not always carried out during startup (depending on P41)

Setting 1: The valve test is carried out in each startup phase

P41 VPS: active after switch-off

Setting 0: The valve test is never carried out after a regular switch-off

Setting 1: The valve test is carried out after every switch-off and, if necessary, in the startup phase (see section "Operation with valve testing system")

P42 VPS: Duration Emp-tying area between valves

Indicates how long V2 will be opened in order to let the possible overpressure escape into the com-bustion chamber.

P42 VPS: Test time V1 Indicates the duration of the test in order to find out whether a pressure is being built up in the area between the valves.

P44 VPS: Duration Filling area between valves

Indicates how long V1 will be opened in order to let gas flow into the area between the valves.

P45 VPS: Test time V2 Indicates the duration of the test in order to find out whether gas es-capes from the area between the valves.

P46 VPS: GDWVPS as minimum monitoring

The GDWVPS input can also be used for the monitoring of the mini-mum gas pressure. For doing this, this parameter must be set to "Ac-tive". If this value is inactive, the GD-WVPS input is only evaluated dur-ing the valve test.

For the calculation of these parameters or for the settings recommended by DUNGS, see 7.4.2 Operation with valve testing system.

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8 Parameters8.5 P5x - Additional valve

ParameterP5x


P50 Additional valve: Activation state

In the state defined here, the output of the additional valve is activated. Attention! The actual activation can take place with a delay in time! See also P52.

P51 Additional valve: De-activation state

In the state defined here, the output of the additional valve is deactivat-ed. Attention! The actual deactivation can take place with a delay in time! See also P53.

P52 Additional valve: Time-delayed activa-tion

Using this parameter, the time-delayed activation is defined, that means that the additional valve is switched on a set time period after the activation of the state defined in P50.Attention! If the duration of the state is shorter than the defined delay, the additional valve is only activated with the start of the sub-sequent state. For example, if the state "Pre-aeration A" is set with a delay in time of 40 seconds (P50 and P52), the pre-aeration time A, however, (P60) lasts only 30 sec-onds, the additional valve is al-ready activated after 30 seconds when the next state is started (e.g. "pre-aeration B) and not 40 sec-onds after the start of the state "pre-aeration A".

P53 Additional valve: Time-delayed deacti-vation

Same function as P52, but with a delay in time for the switch-off key.

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8 Parameters8.6 P6x - Startup

ParameterP6x


P60 Pre-aeration time A Defines the duration of the pre-aer-ation A. For the difference between pre-aeration A and B, see section "Operation with reduced pre-aera-tion"

P61 Pre-aeration time B Defines the duration of the pre-aer-ation B. For the difference between pre-aeration A and B, see section "Operation with reduced pre-aera-tion"

P62 Duration gas detec-tion startup phase

Defines the duration of the gas detection GDWVPS in the section 7.5 State 17: "Gas detection GD-WVPS" Here, the valve 1 is opened in order to let gas flow into the area between the valves. The GDWVPS must de-tect a gas pressure at the end of the state otherwise V2 is not opened due to a lack of gas and the MPA switches to the waiting program (see state 36: "Waiting program").

If both types of valve test are deac-tivated, the GDWVPS is not evalu-ated and the time duration can be set to 0!

P63 Pre-ignition time Defines the duration of a pre-igni-tion.

P64 Safety time for star-tup phase

Defines the duration of the safety time for startup phase (SZA).Attention! This duration is divided in the two states "SZA ignition" and "SZA flame detection" while the state "SZA flame detection has al-ways a duration of 0.5 seconds

P65 Stabilisation time A Defines the duration of the stabi-lisation time A. For the difference between stabilisation time A and B, see section 7.2.4 "Operation with ignition gas flame.SDSq

P66 Stabilisation time B Defines the duration of the stabi-lisation time B. For the difference between stabilisation time A and B, see section 7.2.4 "Operation with ignition gas flame.SDSq

P67 Start modulation de-gree Standard mode

Indicates the modulation degree that the automatic burner control should adopt in the standard mode after the creation of the flame and after the stabilisation times A and B have elapsed.

As soon as the standard mode has been reached, there are several options to modifiy the modulation degree (P72).

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.8 Parameters8.7 P7x - Operation

ParameterP7x


P70 Duration Standard mode

Here you can define whether the automatic burner control should carry out a voluntary switch-off. If yes, define the operating time (in minutes)

Typical settings:0xFFFF = 65535 Continuous op-eration / no switch-off.1439 = 23h 59 min intermittent op-eration.

Also other values are possible, e.g. 60 = switch-off after 1 hour.Continuous operation (≥ 24 h) is only possible using acontinuous operation stick, see section 8.11

P71 Modulation degree: new nominal value

This value can be used to define a new modulation degree. As soon as the automatic burner control has recognised a new value, this param-eter is reset to 0xFFFF (=65535).

P72 Modulation degree: Type of modification

Defines the type of modulation de-gree that is predefined for the op-eration:

Setting 0: Externally, that means only by means of one of the com-munication interfaces to a new ab-solute value

Setting 1: Plus / Minus, that means via a communication interface to an absolute value or upwards (plus) or downwards (minus) relative to the currently set modulation degree via the two corresponding hardware inputs.

Setting 2: By means of a suitable extension module via an analogue input to an analogue predefined absolute value with the full range of values, for example 0 V (0 %) to 10 V (100 %). *1

Setting 3: By means of a suitable extension module via an analogue input to an analogue predefined absolute value with a limited range of values, for example 4 mA (0 %) to 20mA (100 %). *1

*1: The analog value is accepted as soon as the detected modification is > 5 % of the final value (e.g. > 1 mA at 4...20 mA). Modifications < 5 % are accepted only after a certain time (see P74). Modifications between 0% and +0.5% are considered as "Noise" and are eliminated.

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8 Parameters8.7 P7x - Operation

ParameterP7x


P73 Modulation degree: Step width of the modification

Defines the maximum step width of a modulation degree modifica-tion without intermediate control.

a) By means of relative modifica-tion via the plus or minus input, the nominal value is modified upwards or downwards by the value defined in P73. Further modifications are accepted as soon as the fan and the stepped motor work again in the allowed tolerance range (P25 and P31).b) Due to new absolute setpoints, the MPA modifies its current modu-lation degree step by step by the value defined here until the new setpoint is reached. After each intermediate step, the automatic burner control waits until the fan and the stepped motor work in the allowed tolerance range (P25 and P31).

P74 Modulation degree: Interval Acceptance of analogue values

Defines the time interval for the evaluation and acceptance of the analogue input in the operating mode "Modulation degree setpoint via analogue input" (setting 2 and 3 of P72).

Particularly for the operation with stepped motor, this time interval should not be too short in order to avoid repeated one-step move-ments forward and backward of the stepped motor.

See also *1 of P72P75 Modulation degree:

Lower limitDefines a lower limit below which the modulation degree must not fall. Setpoints which fall below this limit are adjusted to the allowed range.Example: Lower limit = 10 %, new setpoint = 8 % Automatic burner control corrects the setpoint to 10 %.

P76 Modulation degree: Upper limit

Defines an upper limit of the modu-lation degree which must not be exceeded. Setpoints which are out-side this limit are adjusted to the al-lowed range.Example: Upper limit = 90 %, new setpoint = 97 % Automatic burner control corrects the setpoint to 90 %.

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8 Parameters8.8 P8x - Switch-off

ParameterP8x


P80 Regular switch-off: Transition time

Using this parameter, a transition time can be activated in which the MPA remains after the failure of the temperature controller / heat re-quest. The flame remains burning.

During this time, the MPA moves to the modulation degree defined in P81.

This function can be used to avoid that the MPA switches off in an un-desired modulation degree.

Attention! This setting can only be applied for the regular switch-off. In case of a safety switch-off, the MPA switches off without changing the modulation degree to the desired setting.

P81 Regular switch-off: Power during transi-tion

This value defines the desired modulation degree for a regular switch-off. Chose the value so that no undesired noise or vibrations are generated during the regular switch-off.

Attention! A sufficiently long transi-tion time after a regular switch-off (P80) must be defined in order to reach this modulation degree.

Attention! This setting can only be applied for the regular switch-off. In case of a safety switch-off, the MPA switches off without changing the modulation degree to the desired setting.

P82 Follow-up time See state: "Follow-up time".

Defines the time during which the external light is not monitored after a regular switch-off.

P83 Post-aeration time Defines the post-aeration time after a regular switch-off.

Attention! After a safety switch-off, this post-aeration is not carried out!

P84 Off-period before restart

Defines the duration of the compul-sory waiting time until the automat-ic burner control is allowed to start again.

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8 Parameters8.9 P9x - Waiting program

ParameterP9x


P90 Waiting program: Restart attempts

Defines the number of restart at-tempts after the errors "Lack of gas on GDWVPS" or "Safety chain open" until the MPA switches to the fault switch-off.

The setting 0xFF and 255 means that an infinite number of restart at-tempts can be carried out without activating the fault switch-off of the MPA.

P91 Waiting program: Duration

Defines the time period after which the MPA carries out another restart attempt.

Attention! For the first restart at-tempts, the duration can differ from this setting! See state: "Waiting program".

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8 Parameters8.10 Internal parameters

ParameterP10


P250 Internal parameters: Modulation degree modification allowed

Please do not change!

P251 Parameter stick: Password


P252 Internal parameters: Programming of curves


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8.11 Parameter record and stick for continuous runThe MPA51xx offers the possibility to load predefined parameter records from a stick.

The parameter record stick is ad-justed during the startup phase (state 2). That means that, if the parameter P10 is active (=1), the data of the stick are compared with the data of the automatic burner control. If de-viations are detected, the data on the stick are copied into the automatic burner control. To copy the data, a password which is adapted to the stick must be entered (a "c" flashes in the display).If the parameter is not active (= 0), the function "Parameter record stick" is considered as not desired. There-fore, the data are not compared and not copied. The automatic burner control works with the data stored in the MPA.

The continuous run function is only possible using a stick. There is always a check (independent of P10) whether a continuous run stick is plugged in. At the same time, this can also be a parameter record stick.

It is not possible to copy a data record from the MPA to a parameter record stick. Parameter records must be generated and created by DUNGS.

Attention!The parameters in the MPA only comply with the parameters of the parameter record stick if the param-eter P10 is active!

Attention!There are parameter record sticks which do not compare and copy all parameters but only a part quantity. Please observe which parameters are compared and copied by the plugged-in parameter record stick and which not.

A parameter record stick can be used for the following applications:

a) Configuration of the burner ver-sion with astick permanently plugged in:

As soon as the stick is plugged in and the password is entered, a specific parameter record is transmitted to the MPA. Is is pos-sible to modify parameters but, during the next startup phase (state 2), the modifications are recognised and the automatic burner control copies the data from the stick.

If the stick is removed, the MPA does not start again.

Attention! According to the stick, some

parameters are not considered during the adjustment process (stick with a part quantity of the parameters).

Attention! For this application, the param-

eter P10 must never be deacti-vated!

This version is suitable for a per-manent definition of the burner. When a (defective?) MPA is re-placed, the stick connected to the burner guarantees that the new MPA uses the same settings than the old one.

b) Configuration of the burner version by a stick which is used only once:

As soon as the stick is plugged in and the password is entered, a specific parameter record is transmitted to the MPA (P10 must be active).

During a restart (recommended!) the new parameter record is again compared in state 2 with the val-ues on the stick and thus the ad-justment process is controlled. If a restart is carried out or not, the user has to check the new data and to enable the new settings by deactivating the parameter 10. Note: the parameter view in the VisionBox must be updated!

After the unique copy process and the deactivation of the pa-rameter 10, the stick may remain plugged in or can be replaced by another stick.

Even if the stick remains plugged in, modifications of the param-eters are not recognised. For another data adjustment with the MPA, the parameter 10 must be activated. During the next startup phase

(state 2), the MPA carried out an-other data adjustment (protected by a password).

Attention! According to the stick, some

parameters are not considered during the adjustment process (stick with a part quantity of the parameters).

This version is suitable to pro-gram a unique configuration in a MPA, for example, in the produc-tion during a first startup, as a "Return-To-Factory-Settings func-tion",...

Attention! A special access level is defined

for activation or deactivation of the parameter records on the extension module.

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9 Curve settings/ modulation degree

9.1. Stick and VisionBox

The programming of curves is only possible using the VisionBox and a parameter record stick! The curves cannot be processed via the 3 seg-ments display!

Here you can:a) read the current settings of the

MPA,

b) change the setting of the modula-tion degree point and the special points by a right mouse click,

c) transmit the modified settings temporarily to the MPA for test purposes.

Attention! Settings are reset after a restart of the MPA!

It is possible to plug in the desired parameter record stick or to start the respective interface of the ap-plication software of the connected VisionBox under "View Program-ming of curves".

d) apply the modified settings in the MPA.

Attention! Applied settings are permanently active and remain stored.

PWM 2 and PWM 3 can be used ac-cording to the connected extension module for analogue output signals(for ex. 0...10 V or 4...20 mA).

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9.2 Definition of terms

9.2.1 Burner capacityIndicates the capacity and/or heat produced by the burner. Typically, the capacity is indicated in kWh.

9.2.2 Modulation degreeNormally, there is a difference be-tween the modulation degree and the burner capacity. However, it is possible to program the MPA in a way so that the two values comply with each other!

It is possible to predefine the so-called "modulation degree" of the burner in the state "Standard mode" on the MPA using several options (see P72).

9.2.4. Special pointIn order to define the respective combinations for fan, stepped motor, PWM 2 and PWM 3 also outside the standard mode, there are the so-called "Special points". They indicate

A specific combination of nominal value for the fan, stepped motor position and nominal value for PWM 2 and 3 is assigned to each modula-tion degree via the curve segment. That means that, if a new modula-tion degree is predefined, the MPA calculates the corresponding nomi-nal values for the fan, for the stepped motor, for PWM 2 and PWM 3. Afterwards, the fan, the stepped mo-tor, PWM 2 and PWM 3 are adapted to the new value.The modulation degree can be changed in the range between 0 % and 100 %.

Attention!0 % (100 %) do not comply neces-sarily to the lowest (highest) possible burner capacity! The actual burner capacity depends on the combina-tion of all influencing values.

But the MPA can be set in a way that 0 % of the modulation degree complies to the minimum burner capacity and 100% to the maximum burner capacity. Minimum means in this case not "Flame Off" / " No heat" but "smallest possible flame". Also the modulation degrees between 0% and 100% can be programmed proportionally to the burner capacity. A relationship between modulation degree and burner capacity, how-ever, is not necessary for the MPA.

the nominal values, for ex. during the pre-aeration, the ignition, the post-aeration, etc. These special points are assigned to specific states. They are not assigned to the modulation degree, since these special points

must represent not valid combina-tions of the curve segment.

9.2.3 Curve point In the MPA, up to 30 curve points can be programmed for the stand-ard mode. At least 2 points must be available: one for the modulation degree 0 % and the second for a modulation degree 100 %.

A curve point defines the nominal value for the fan, the position of the stepped motor and the nominal values of the PWM signals 2 and 3 at the assigned modulation degree.

For modulation degrees which are not explicitly defined as a curve point, the MPA calculates the re-spective intermediate value from the previous and the subsequent point (linear interpolation).

2 curve points for the same modu-lation degree are not allowed! The curve points are automatically as-sorted in increasing order according to the modulation degree.

The programmed nominal values, for example for the stepped motor, can also be curves with changing curve directions, that means that even a curve can be programmed in the fol-lowing way:

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10 Error overviewMPA 51xxErrorID

Internalerror

Error description Possible cause of the error

10.1 Errors from processor 2F1

Display flashes

●No bus connection to processor 1 ? TWI bus connection blocked by an de-

fective external bus user, for example a defective VisionBox or ....

F2Displayflashes

Incorrect display ? The display AM03 (only for MPA 51) has been connected to the MPA 51xx.Correct: Use AM08 or AM09

F3Displayflashes

Password change for access level failed. ? Incorrect password for the access level? Unlock key has not been pressed

10.2 Error from the basic system (0x01 to 0x3F)0x01 ● ERROR_INTERRUPT_CYCL_STATEFRAME0x02 ● ERROR_WD_TRIGGERING0x03 ● ERROR_WD_HARDWARE

0x04ERROR_UNLOCKING_DENIED ? more than 5 unlockings in the last 15

minutes, remedy: Wait or carry out an Ex-tended unlocking

0x05 ● ERROR_ROM_TEST0x06 ● ERROR_RAM_TEST0x07 ● ERROR_PINSHORTCIRCUIT0x08 ● ERROR_STACK_OVERFLOW0x09 ● ERROR_PROGRAMMING0x0A ● ERROR_DI_VARIABLE0x0B ● ERROR_IN_TABCONTROLERROR0x0C ● not used0x0D ● ERROR_CPU_TEST0x0E ● ERROR_EEPROM_PARAMETER0x0F ● ERROR_ADDRESS_TEST0x10 ● not used

0x11 ERROR_UNDERVOLTAGE ? The admissible lower voltage limit was not reached at least for a short time

0x12ERROR_POWERFAILURE ? The supply voltage was interrupted dur-

ing startup, in the operation or during the regular switch-off

0x13 ERROR_WD_STATUS ? The safety chain is not potential-free0x14 ● ERROR_DI_SEGMENT_TEST0x15 ● ERROR_SFRREGISTER_TEST

0x16

ERROR_TWI_COMMUNICATION ? A user of the TWI bus must be con-nected to the bus or separated from the bus while the MPA was disconnected from the mains. Remedy: Connect or separate a user of the TWI bus only if the MPA is disconnected from the mains.? Too many users are connected to the TWI bus or EMC faults occur on the TWI line. Remedy: Use shorter lines or reduce the number of users

0x17 ● ERROR_STATEFRAME_OVERLOAD

0x18

ERROR_EXTERNAL_APPLICATION A switch-off has been activated by an ex-ternal user, for example by selecting the function "Switch-off" in the PC software of the VisionBox

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Internalerror


0x19 ● not used0x1A ● ERROR_SWWD_DURING_INITIALISATION0x1B ● ERROR_BUFFEROVERFLOW

0x1C ● ERROR_SYNCHRONISATION_DURING_INI-TIALISATION

0x1D ● ERROR_PROCESSORFAILURE ? MPA is influenced by strong EMC inter-ferences

0x1E ● ERROR_SFRREGISTER_STATEBLOCK... not used

10.3 Error from the extended functions (0x40 to 0x9F)

0x40

ERROR_FANDEFAULTS ? In the curve segment, a fan default is predefined, which is smaller than the mini-mum speed or higher than the maximum speed of the fan (P26 or P27). P26 (min. speed) is 500 U/min but the speed for modulation degree 0% is set to 480 rpm. Or P27 (max. speed) is set to 5600 rpm but the pre-aeration B should be carried out with 5800 rpm.

0x41

ERROR_FAN_DEVIATION ? The number of pulses in the fan feed-back is set to an incorrect value? The fan is not suitable for the desired speed ? The predefined tolerance is too low or the fan controller is not optimised

0x42

ERROR_FAN_NO_FEEDBACK ? The feedback line of the fan is not cor-rectly connected or is interrupted? The fan is blocked and does not work? The fan is not supplied with power or is defective

0x43 ERROR_TEST_IONISATIONINPUT

0x44

ERROR_CURVECRC16_TEST ? The curve segment was temporarily changed, for ex. for putting the MPA into operation, and was not correctly enabled later

0x45 ● ERROR_INVALID_MODULATIONDEGREE ? Modulation degree is outside the limits0x46 not used0x47 ● ERROR_INVALID_STEPPEDMOTORTYPE ? Check stepped motor (compare P30)

0x48

ERROR_STEPPEDMOTOR_TOLERANCE_EX-CEEDED

? The lines to the stepped motor are not correctly connected or partly interrupted? The stepped motor is charged with more than the admissible torque, for example due to improper mounting of the flap or pressure impulses.

0x49 ERROR_STEPPEDMOTOR_REFERENCE_NOT_FOUND

? see error 0x48

0x4A ERROR_STEPPEDMOTOR_NO_REACTION ? see error 0x48

0x4b

ERROR_PARAMETERRECORDSTICK_NOT_FOUND

? Parameter record activated but not plugged in the MPA? Stick defective? Duration of the standard mode (P70) is higher than 23 h 59 min and the continu-ous run is not enabled? PWM outputs configured to analogue operation (0..10 V or 4...20 mA) but no suit-able stick is plugged in.

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Internalerror


0x4CERROR_PARAMETER_RECORD_STICK_BLOCK_ADJUSTMENT

? A parameter could not be copied from the stick, for ex. because the variable lim-its in the MPA were confined.

0x4d ERROR_PARAMETER_RECORD_STICK_IN-CORRECT_PASSWORD

? The entered password is not suitable for this stick

0x4EERROR_PARAMETER_RECORD_STICK_NO_CONTINUOUS_RUN

? Duration of the standard mode (P70) is higher than 23 h 59 min and the continu-ous run is not enabled

0x4F ERROR_PARAMETER_RECORD_STICK_TYPE

? The stick does not fit with the type of au-tomatic burner control

0x50 ● ERROR_FEEDBACK_ADDITION_INCORRECT

0x51ERROR_ADDITION_INVALID_DELAY ? Parameter P52 or P53 are set to an

invalid value because the concerned state (P50 or P51) cannot have the set duration

0x52 not used 0x53 ERROR_LACKOFGAS_GDWVPS

0x54 ●

ERROR_PWM_CALIBRATION_VALUES ? The EEPROM was changed or deleted when programming the parameter record stick? Parameter record stick defective

0x55 ● ERROR_PARAMETER_RECORD_STICK_CRC_DATA

? Parameter record stick defective

... not used 10.4 Error from the application (from 0xA0)

0xA0

ERROR_STATE_DURATION_TOO_LONG(Error fan and/or stepped motor)

? in the state 3, 16 and 23: The fan and/or the stepped motor cannot reach its nomi-nal value within the expected time period? other states: Internal error

0xA1

ERROR_FAN_STARTUP (Error fan and/or stepped motor)

? in the state 3, 16 and 23: The fan and/or the stepped motor cannot reach its nomi-nal value within the expected time period? other states: Internal error

0xA2

ERROR_SAFETY_CHAIN_OPEN ? The safety chain has been opened or is not closed? The wires of the safety chain are inter-rupted

0xA3ERROR_PARAMETER_RECORD_STICK_NO_PASSWORD

? The values in the MPA and in the param-eter record stick are different. The request-ed password was not entered (timeout).

0xA4 ● ERROR_FEEDBACK_V1_INCORRECT0xA5 ● ERROR_FEEDBACK_V2_INCORRECT

0xA6

ERROR_EXTERNAL_LIGHT ? Earth connection to an ionisation elec-trode? Gas flows out and is burned for ex. by neighbouring burners? Connected flame detector detects ex-ternal light

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Internalerror


0xA7

ERROR_NO_FLAME_DURING_SZA ? Ionisation electrode incorrectly set? Ignition electrodes incorrectly set? Insulated lines of the ignition electrodes or the ionisation electrode defective? Pneumatic composite incorrectly set / Incorrect gas type? Gas valves do not open the gas flow? Incorrect configuration of the curve points? Connected flame detector (UV, ...) detects light or is defective? Lines of mains connection on the MPA exchanged ("N" and "L1")

0xA8

ERROR_FLAME_GONE_OUT_DURING_OP-ERATION

? Gas supply or pneumatic composite are not set/suitable for high capacities? Flame body defective? Connected flame detector (UV, ...) detects no light or is defective

0xA9 ERROR_FLAME_GONE_OUT_DURING_STA-BILISATION

? see 0xA8, the problem occurs earlier.

0xAA

ERROR_IDLESTATECONTROL_LDW ? The air pressure detector is defective? There is an air pressure during the idle state control, for ex. due to an air flow from the exhaust line,... ? The threshold value of the air pressure detector is set to an incorrect value

0xAB

ERROR_NO_AIR_PRESSURE ? the air pressure detector is incorrectly connected or defective? the fan does not work? the threshold value of the air pressure detector is set to an incorrect value

0xAC ● ERROR_FEEDBACK_IGNITION_INCORRECT0xAD ERROR_LACKOFGAS_GDWMIN0xAE ERROR_VPS_V1_LEAKING0xAF ERROR_VPS_V2_LEAKING0xB0 ● ERROR_TESTCIRCUIT_EXTENSION

... not used

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11 Display unit

11.1 Overview display modes

Mode ActiveOperational status display in normal operation if no error is activeError display if the automatic burner control is in the fault switch-off phaseInfo display by pressing the key combination

(+ and ↵) in state 1 or 35 Service display by pressing the key combination

(- and ↵) in state 1 or 35Display of the error memory by pressing the key combination

(+ and ←) in state 1 or 35Parameterising display by pressing the key combination

(↵ and ←) in state 1 or 35Reset display by pressing the key combination

(- and ←) in the operational status displayPassword entryParameter record stick

if a new parameter record is to be copied

Flashing display Option 1: Request to confirm the access level changeOption 2: Keep the unlock key depressed for more than 5 s to restart the MPA

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11.2 Key assignment MPA 5111 and MPA 5112

Charactersblue

Heatrequestblue

Flameyellow

Faultred

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11.4 Operational status display MPA5111

Display of the individual process states

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Error display

▶ An error message is automatically displayed as soon as the automatic system goes to the fault lock system.

▶ The error that has occurred last is displayed.

Automatic activationif a fault is active

Unlock

As long as the Plus key is kept depressed, the state

number is displayed

As long as the Minus key is kept depressed, the

additional error message is displayed

11.6 Error display

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Info display

▶ The info display is activated out of the operational status display.

▶ Using the info display, information on the current counter reading such as start counter and permanent runtime meter can be called.

▶ This operating mode is left after a timeout of 20 s if no key is pressed within this time period.

11.7 Information display

Activation of the info display by simultaneous pressing of

the keys

Display of the quality

of the ionisation current

Display of the fifth place before the decimal point (1)

on the permanent start counter

Display of the fifth place before the

decimal point (100) on the permanent

start counter

Display of the fifth place before the dec-imal point (10000) on the permanent start

counter


decimal point (1) on the permanent run

time meter



time meter



time meter

Back to the opera-tional status display

Switches to the operational status

display

from each info display state

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Reduces the power

Increases the power

set modulation percentage

Activation of the service display:press the keys simultaneously

back to the operational status display

Service display

▶ The service display is activated out of the operational status display.▶ The service display can only be activated in the burner mode.▶ A heat request must be active on the temperature controller input.▶ Power setting by means of the ± keys

!! In this mode, the device does not react to the power setting signal of the inputs Power [+] and Power [-]

11.8 Service display

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Parameterisation display

▶ The parameterisation display can only be activated when the standby mode on the operational state indicator is active.

▶ The parameters which cannot be changed due to the access level are only displayed.

Activation of the parameterisation display by simultaneous pressing of the keys

Reduces the value

Switches to the operational

status display

3,4

5

1Increases the value

Parameter type U8

Parameter type U1

5

2

Value equal to 0

Value equal to 1

Saves the value

Reduces the value

Increases the value

Previous parameter

Next parameter

Confirm the param-eter selection Action

cancel

Cancel the action

Saves the value

11.9 Parameterisation display

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Switches to the

operational status display

1

5

4

3 2

Parameter type U16Set the thousands

11.9 Parameterisation display

Value increase

Value reduction

cancel

cancelSet the ones

confirmation

confirmation

Code inputHigh Byte confirmation

confirmation

Flashing display As long as the the level change is confirmed by pressing the reset key

Value increase

Value reduction

Value in P1correctly saved

5

5

Value increase

Value reduction

confirmation

Incorrect password,display flashes showing CCC for 1 s orafter 30 s elapsed without passward entry

back to the correspond-ing parameters

Value increase

Value reduction

cancel

Code inputLow Byte

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Reset display

▶ The reset display is activated out of the operational status display.

▶ The error memory, the access levels, resettable runtime meter and start counter can be reset by means of the reset display.

▶ This operating mode is left after a timeout of 20 s if no key is pressed within this time period.

Action to be carried out:0 deletes the error memory1 resets the access level2 deletes the resettable runtime

meter3 deletes the resettable start

counter4 Change password for SERVICE

level5 Change password for OEM

level

Activation of the reset display by simultaneous pressing of the keys

Cancel the action

Back to the operational status display

nextParameter

previousParameter

11.10 Reset display

1

Action 4,5

Action 0,1,2,3

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Switches to the operation display

Flashing display for 3 s

cancel

1

Flashing display for 3 s

Code indicationNew password

Low byte

Code indicationNew password

High byte

confirmation

Flashing display until the level change is confirmed by means of the reset key

Error,flashing display for 5 s

Back to operation display

30 s elapsed without levelswitching confirmation

cancel

confirmationValue increase

Value reduction

confirmation

Incorrect passwordCorrect password

Code inputNew password

High byte

Code inputNew password

Low byte

confirmation


display

Value increase

Value reduction

Value reduction

Value increase

Value increase

Value reduction

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11.11 Error memory display


Display of the error memory

▶ The display of the error memory is used to call the last ten errors.▶ The error that has occurred last is displayed.▶ The error memory display is activated out of the operational status display.▶ This error memory display is left after a timeout of 20 s if no key is pressed within this time period.▶ The error that has occurred last is displayed.

As long as the Plus key is kept de-pressed, the state number is displayed

As long as the Minus key is kept de-pressed, the additional error message is displayed

last error occurred

As long as the Plus key is kept de-pressed, the state number is displayed

As long as the Minus key is kept de-pressed, the additional error message is displayed

first error of the last ten errors


display

from each error display state

if the key is pressed, always the previous error is displayed

...

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11.12 Password entry parameter record stick

Reduces the value

Increases the value

confirmation

Automatic change to the Parameter stick - password display during start process

Code input

Password input for parameter stick

▶If the parameter values of the plugged-in parameter stick do not comply with the stored parameter values of the automatic system, a password must be entered before starting the automatic system. Then, the parameter values are copied.

▶ After confirmation the automatic gas burner performs a restart.

▶ If the password is not correctly entered, the automatic system switches, depending on the anti-oscillation counter, to the error status or returns to the password entry.

▶ When the password entry is correct, the automatic system is restarted.

c flashes

then the system is restarted

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12 VisionBoxThe VisionBox is used to have ac-cess to the MPA via a PC.See VisionBox

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13 Flame detectorThe following flame detectors are approved by DUNGS and can be recommended for use in connection with the MPA51xx:

Manufacturer Designation Type Output signal Reaction time

Certificate Continuous operation

- Ionisation electrode

Ionisation Ionisation < 1 s Yes

BST solutionsDUNGS

KLC 1000 FLW 20

UV tube Ionisation (1 s + 0.5 s) = < 1.5 s

Yes No

BST solutionsDUNGS

KLC 2000FLW 10

Flicker de-tector with frequency analysis

Ionisation (1 s + 0.5 s) = < 1.5 s

Yes No

DUNGS has the following require-ments to flame detectors used with the MPA51xx:

1. Approval and certification by the respective bodies (DVGW, DIN Certco,...) must be ideally pro-vided.

An independent prove about the compliance with the respective demands of the DIN EN298 is required.

2. The ionisation behaviour of a flame must be simulated (rectifier effect)

3. The following values are active on the ionisation input and output

230 VAC +10 % -15 % The internal resistance of the

MPA is approx 1 MΩ. For safety reasons, the flame sensor must work properly also with an internal resistance of 360 kΩ.

4. Under these conditions, the simu-lation circuit in the flame detector must reach at least a direct cur-rent 3 µA.

If an alternating current with a DC component is simulated, the DC component should reach at least 25%.

The current can be derived to N, PE or returned to N on the MPA.

5. The supply voltage for the flame detector must be tapped off at the output ION_PWR of the MPA51xx

(230 VAC, max. 1 A).6. The reaction times must be ob-

served! Total reaction time = reaction time

MPA + reaction time flame detec-tor

The reaction time of the MPA is < 1 s7. The EMC regulations must be

observed (EN 298). The entire system must not represent inad-missible emissions.

8. The MPA51xx is not decoupled. The polarity of the MPA and the flame detector must be strictly observed.

9. Prior to use a flame sensor which is not included in the list, please contact DUNGS. DUNGS cannot be held liable if the flame detector and the automatic burner control do not work orderly together. Especially if the electromagnetic behaviour is not according to the regulations or if the time depend-ent behaviour is not correct.

For a good flame detection the flame signal has to be considered during configuration of the burner.The LED of the flame on the display must not be flashing and the dis-played signal in the VisionBox appli-cation must have more than 40 digits.

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14 Stepped motor14.1 Overview of the possible stepped motor types

0°

90°

90°

0°

90°

0°

90° =93,37°

0°

0°

90°

90°

0°

90°

0°

14.2 Reference point "Standard"The rotation ranges are indicated

14.3 Reference point "Exchanged"

SAD 15 SAD 1.2 WG SAD 1.5 SAD 1.2 SAD 3.0 WG SAD 3.0 (IP 40) SAD 10 WG *1

1* this version is not yet available

0°

90° =93,37°

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14.4 Mathematical angle positionsThe mathematical angle position is indicated in the view from the bottom on the driven shaft as shown in the pictures above.The mathematical angle position

of the stepped motor position 0° or 90° for the respective stepped mo-tor type is indicated in the following table:

SAD 15 SAD 1.2 WGSAD 3.0 WGSAD 10 WG*1

SAD 1.5SAD 3.0(IP 40)

SAD 0.6SAD 1.2

Reference point "Standard":

270° / 0° 90° / 0° 270° / 166,63° 90° / 0°

Reference point "Exchanged":

19° / 289° 81,5° / 341,5° 156,92° /250,29°

341° / 71°

*1 : this version is not yet available

Attention!All stepped motors must be equipped with two mechanical stops.

• Lower mechanical stop between -7° and -10°

• Upper mechanical stop between 92° and 95° or

upper mechanical stop between 95,5° and 98,5° for SAD1.5 and SAD3.0 (IP 40)

The absolute stop positions depend on the stepped motor and the se-lected reference point (see table).

0° / 90° correspond to:

180°

90°

0°(360°)

270°

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PIN designation in the SAD 15 230 V mains power supply or MPA output 6L L1N N

PIN designation in the SAD 15 230 V mains power supply or MPA output 61 62 53 not used4 25 46 3

not used 1

14.5 Wiring diagram SAD15 Power supply

Signal lines SAD15

Connection SAD15

P1

P3

P2

NLPE

EA SA 1EB SB 2OK WD 3

GND 4AA MA 5AB MB 6

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Stepped motor 230 V (L1)Mains power supply

24 V by means of a sepa-rate power supply unit

24 V via MPA5111

SAD 1.2 - X (> 7W) XSAD 1.2 WG - X (> 7.5W) XSAD 1.5 - X (> 7W) XSAD 3.0 (IP40) X - -SAD 3.0 WG - X (> 10W) XSAD 10 WG *1 - X (> 10W) ?SAD 15 X - -

14.6 Power supply of the stepped motors

*1 this version is not yet available

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63 … 6862 … 68

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15 Time diagramMPA51xx

by m

eans

of a

n ex

tend

ed m

odul

e

Gen

eral

ver

sion

Vies

sman

n ve

rsio

n

Erro

r

Wai

ting

for h

eat r

eque

st

Wai

ting

for p

aram

eter

reco

rd s

tick

adju

stm

ent

Idle

sta

te c

ontr

ol: F

an/s

tepp

ed m

otor

Idle

sta

te c

ontr

ol L

DW

(air

pres

sure

sw

itch)

Wat

chdo

g lo

adin

g ph

ase

Star

tup

phas

e: F

an/s

tepp

ed m

otor

Wai

ting

for a

ir pr

essu

re

VPS

A: D

ecis

ion

VPS

A : E

mpt

ying

the

area

bet

wee

n th

e va

lves

VPS

A: T

est t

ime

V1

VPS

A: F

illin

g th

e ar

ea b

etw

een

the

valv

es

VPA

A: G

as p

ress

ure

dete

ctio

n

VPS

A: T

est t

ime

V2

Pre-

aera

tion

A

Parameter P40 P42 P43 P44 P45 P60

Time0.

..

0...

max

. 3 m

in

max

. 2 m

in

max

. 2 m

in

3 s

max

. 2 m

in

max

. 30

s

0.1

s

1...3

s

1...2

40 s

1...3

s

0.1

s

1...2

40 s

0...1

h

State number 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Safety chain

Watchdog

Alarm

Temperature controller

Additional valve *4 Y1 Y3

V1 Y2 Y1

V2 Y3 Y2

Ignition

Fan relay

PWM1 (fan) *2a*2b

PWM2 (for ex. analogue 0...10 V) ● *2a*2b

PWM3 (for ex. analogue 4... 20 mA) ● *2a*2b

Stepped motor ● *2a*2b

Flame (ionisation)

LDW *1

GDW min.

GDW VPS *5

Parameter record stick active ●

Parameter VPS Startup

Parameter VPS Regular switch-off

*1) The monitoring of the LDW depends on the operating mode set in P14.

*2) Analogue and fan capacities as well as fan speed can be set by means of curves.

a) Special modulation point: OFFb) Special modulation point: Pre-aeration Ac) Special modulation point: Pre-aeration Bd) Special modulation point: Ignition position

e) Special modulation point: STAf) Special modulation point: Stabilisation Ag) Special modulation point: Stabilisation Bh) Parameter P67: Start modulation degree Standard modei) Parameter P81: Regular switch-off: Power during transitionj) Special modulation point: Post-aeration

*3) In the waiting program state, the first wait-ing time is 2 minutes, then 5 minutes, then 1 hour and afterwards a time period which can be set by means of a parameter between 1 minute and 50 hours. If the set time period is smaller than the first three intervals, these are also reduced. Another parameter indicates whether a fault switch-off is allowed and, if yes, how many restart attempts are to be carried out until the automatic burner control

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15 Time diagramMPA51xx

by m

eans

of a

n ex

tend

ed m

odul

e

Gen

eral

ver

sion

Vies

sman

n ve

rsio

n

Erro

r

Wai

ting

for h

eat r

eque

st

Wai

ting

for p

aram

eter

reco

rd s

tick

adju

stm

ent

Idle

sta

te c

ontr

ol: F

an/s

tepp

ed m

otor

Idle

sta

te c

ontr

ol L

DW

(air

pres

sure

sw

itch)

Wat

chdo

g lo

adin

g ph

ase

Star

tup

phas

e: F

an/s

tepp

ed m

otor

Wai

ting

for a

ir pr

essu

re

VPS

A: D

ecis

ion

VPS

A : E

mpt

ying

the

area

bet

wee

n th

e va

lves

VPS

A: T

est t

ime

V1

VPS

A: F

illin

g th

e ar

ea b

etw

een

the

valv

es

VPA

A: G

as p

ress

ure

dete

ctio

n

VPS

A: T

est t

ime

V2

Pre-

aera

tion

A

Parameter P40 P42 P43 P44 P45 P60

Time

0...

0...

max

. 3 m

in

max

. 2 m

in

max

. 2 m

in

3 s

max

. 2 m

in

max

. 30

s

0.1

s

1...3

s

1...2

40 s

1...3

s

0.1

s

1...2

40 s

0...1

h

State number 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Safety chain

Watchdog

Alarm

Temperature controller

Additional valve *4 Y1 Y3

V1 Y2 Y1

V2 Y3 Y2

Ignition

Fan relay

PWM1 (fan) *2a*2b

PWM2 (for ex. analogue 0...10 V) ● *2a*2b

PWM3 (for ex. analogue 4... 20 mA) ● *2a*2b

Stepped motor ● *2a*2b

Flame (ionisation)

LDW *1

GDW min.

GDW VPS *5

Parameter record stick active ●

Parameter VPS Startup

Parameter VPS Regular switch-off

Pre-

aera

tion

B

Igni

tion

posi

tion

Gas

det

ectio

n G

DW

VPS

Pre-

igni

tion

SZA

igni

tion

SZA

- Fla

me

dete

ctio

n

Stab

ilisa

tion

flam

e A

Stab

ilisa

tion

flam

e B

Cha

ngeo

ver t

o th

e st

anda

rd m

ode

Stan

dard

mod

e

Cha

ngeo

ver a

fter r

egul

ar s

witc

h-off

VPS

B: D

ecis

ion

VPS

B : E

mpt

ying

the

area

bet

wee

n th

e va

lves

VPS

B: T

est t

ime

V1

VPS

B: F

illin

g th

e ar

ea b

etw

een

the

valv

es

VPA

B: G

as p

ress

ure

dete

ctio

n

VPS

B: T

est t

ime

V2

Follo

w-u

p tim

e

Post

-aer

atio

n

Res

tart

pro

tect

ion

Wai

ting

for h

eat r

eque

st

Lack

of g

as G

DW

MIN

Wai

ting

prog

ram

P61 P62 P63 P64 P65 P66 P70 P80 P41 P42 P43 P44 P45 P82 P83 P84 *3

0...1

h

max

. 2 m

in

0...1

h

0...1

min

.

0.5.

..9, 4

s

0.5

s

1...2

00 s

1...2

00 s

max

. 2 m

in.

0...

1...3

0 s

0.1

s

1...3

s

1...2

40 s

1...3

s

0.1

s

1...2

40 s

1...6

0 s

0...1

h

0...1

h

0...

0...

x m

in.

15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 1 35 36

*2c *2d *2e *2f *2g *2h *2i *2j

*2a

*2c *2d *2e *2f *2g *2h *2i *2j

*2a

*2c *2d *2e *2f *2g *2h *2i *2j

*2a

*2c *2d *2e *2f *2g *2h *2i *2j

*2a

goes to the fault switch-off. The waiting pro-gram state is triggered by a lack of gas or an open safety chain.

*4) The start help valve can be switched on and off at any time (parameter). However it must be activated with the beginning of the state "Waiting for gas pressure" at the earli-est and during the valve test after a regular switch-off at the latest.

*5) The GDW VPS is monitored during the valve test. Additionally, the parameter P46 can define whether the minimum pressure monitoring via GDWVPS during operation between state 17 and state 25 is active or not.

*6) The flame is detected here and must be generated in this state at the latest.

*6

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Appendix AVersions and variants

Variant Version SAP device SAP SW P1for VisionBox

Stick type

MPA5111 V1.0 251446 D 251547 _ 51 1V1.1 251446 E 251547 A 51 2

Changes from V1.0 to V1.1

1. The V1.1 version corresponds to VDE EN60335-1 section 30 of 2007.

2. The passwords for OEM and SERVICE levels can be changed now.

3. Preparations for connection of Profibus modules.

4. Simplifications for parameter changing procedure.

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Para

-m

eter

Name DUNGSAus-lieferung

Einheit Bedeutung EinstellwerteMin Max

Zugriffs-ebene

10 PARAMETER_STICK_AKTIV AUS Parameterstick: aktiv OEM11 ANZAHL_WIEDERANLAUFVER-

SUCHE5 Wiederanlaufver-

suche0 10 OEM

12 ANZAHL_WIEDERANLAUFVER-SUCHE_NACH_FEHLER_KEINE_FLAMME_WAEHREND_SZA

0 Wiederanlaufver-suche nach fehlend-er Flammenbildung

0 10 OEM

13 ANZAHL_WIEDERANLAUFVER-SUCHE_NACH_FEHLER_FLAMMENABRISS_IM_BE-TRIEB

0 Wiederanlaufver-suche nach Flam-menabriss

0 10 OEM

14 BETRIEBSART_LDW 0 LDW: Betriebsart 0 3 OEM15 BETRIEBSART_TEMPERATUR-

REGLER3 Temperaturregler:

Betriebsart 0 255 BETREIBER

16 PARAMETERSATZ_KUNDEN_ID 0 Parametersatz: Kundennummer

0 255 DUNGS

17 PARAMETERSATZ_SATZ_ID 0 Parametersatz: Nummer

0 255 DUNGS

18 BETRIEBSART_PWM_AUS-GAENGE

0 Analogausgänge: Betriebsart

0 15 SERVICE

20 GEBLAESE_REGELSCHALTER AUS Gebläse: Regelung OEM21 GEBLAESE_RAMPE_VER-

ZOEGERUNG1 Gebläse:

Verzögerung/Rampe0 10 OEM

22 GEBLAESE_KP 50 Gebläse: Kp-Faktor 0 160 OEM23 GEBLAESE_TN 50 Gebläse: Tn-Faktor 1 160 OEM24 GEBLAESE_PULSZAHL 2 1/U Gebläse: Pulse pro

Umdrehung1 10 SERVICE

25 GEBLAESE_ZULAESSIGE_TOLERANZ

500 0,01% Gebläse: zulässige Toleranz

0 3000 OEM

26 GEBLAESE_DREHZAHL_MIN 2000 U/min Gebläse: Drehzahl min.

1 10000 SERVICE

27 GEBLAESE_DREHZAHL_MAX 10000 U/min Gebläse: Drehzahl max.

500 10000 SERVICE

30 SCHRITTMOTOR_TYP 0 Schrittmotor: Typ 0 11 SERVICE31 SCHRITTMOTOR_ZULAES-

SIGE_TOLERANZ300 0,01Grad Schrittmotor: zuläs-

sige Toleranz0 500 OEM

40 VPS_ANLAUF_AKTIV AUS VPS: aktiv im Anlauf OEM41 VPS_ABSCHALTUNG_AKTIV AUS VPS: aktiv bei Ab-

schaltungOEM

42 DAUER_VPS_ZWISCHEN-RAUM_LEEREN

16 1/16 s VPS: Dauer Zwischenraum leeren

0 48 OEM

43 DAUER_VPS_PRUEFZEIT_V1 160 1/16 s VPS: Prüfzeit Ventil 1

0 9600 OEM

44 DAUER_VPS_ZWISCHEN-RAUM_FUELLEN

16 1/16 s VPS: Dauer Zwischenraum füllen

0 48 OEM

45 DAUER_VPS_PRUEFZEIT_V2 160 1/16 s VPS: Prüfzeit Ventil 2

0 9600 OEM

46 GDWVPS_ALS_MINUEBERWA-CHUNG

AUS GDWVPS: Mind-rucküberwachung aktiv

OEM

Appendix BParameter overview

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Para

-m

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Zugriffs-ebene

50 ZUSATZVENTIL_EINSCHALT-STATE

22 State Zusatzventil: Ein-schaltstate

6 33 OEM

51 ZUSATZVENTIL_AUSSCHALT-STATE

22 State Zusatzventil: Auss-chaltstate

6 33 OEM

52 ZUSATZVENTIL_EIN-SCHALTVERZOEGERUNG

0 1/16 s Zusatzventil: Ein-schaltverzögerung

0 65535 OEM

53 ZUSATZVENTIL_AUSS-CHALTVERZOEGERUNG

0 1/16 s Zusatzventil: Auss-chaltverzögerung

0 65535 OEM

60 DAUER_VORBELUEFTUNG_A 960 1/16 s Vorbelüftungszeit A 0 65534 OEM61 DAUER_VORBELUEFTUNG_B 0 1/16 s Vorbelüftungszeit B 0 65534 OEM62 DAUER_GASDETEKTION_GD-

WVPS0 1/16 s Dauer Gasdetektion

Anlauf0 160 OEM

63 DAUER_VORZUENDUNG 4 1/16 s Vorzündzeit 2 65534 OEM64 DAUER_SZA 16 1/16 s Sicherheitszeit

Anlauf16 160 OEM

65 DAUER_STABILISIERUNG_FLAMME_A

80 1/16 s Stabilisierungszeit A 0 65534 OEM

66 DAUER_STABILISIERUNG_FLAMME_B

0 1/16 s Stabilisierungszeit B 0 65534 OEM

67 STARTMODULATIONSGRAD_REGELBETRIEB

3000 0,01% Modulationsgrad bei Start Regelbetrieb

0 10000 SERVICE

70 DAUER_REGELBETRIEB 1439 min Dauer Regelbetrieb 0 65535 OEM71 MODULATIONSGRAD_NEUER_

SOLLWERT65535 0,01% Modulationsgrad:

neuer Sollwert0 65535 BETREIBER

72 ART_MODULATIONSGRADAE-NDERUNG

1 Modulationsgrad: Art der Änderung

0 3 SERVICE

73 SCHRITTWEITE_MODULA-TIONSGRADAENDERUNG

100 0,01% Modulationsgrad: Schrittweite der Änderung

0 10000 SERVICE

74 INTERVALL_ANALOGWERTUE-BERNAHME

240 1/16 s Modulationsgrad: Intervall Analogw-ertübernahme

1 65535 OEM

75 MODULATIONSGRAD_UNTER-GRENZE

0 0,01% Modulationsgrad: Untergrenze

0 10000 SERVICE

76 MODULATIONSGRAD_OBER-GRENZE

10000 0,01% Modulationsgrad: Obergrenze

0 10000 SERVICE

80 DAUER_UEBERGANG_NACH_REGELABSCHALTUNG

0 1/16 s Regelabschaltung: Übergangszeit

0 65534 OEM

81 MODULATIONSGRAD_UEBER-GANG_NACH_REGELAB-SCHALTUNG

3000 0,01% Modulationsgrad bei Regelabschaltung

0 10000 OEM

82 DAUER_NACHBRENNZEIT 160 1/16 s Nachbrennzeit 9 65534 OEM83 DAUER_NACHBELUEFTUNG 160 1/16 s Nachbelüftungszeit 0 65534 OEM84 DAUER_WIEDEREINSCHALT-

SPERRE80 1/16 s Wiedereinschalt-

sperrzeit0 65534 SERVICE

90 WARTEPROGRAMM_ANZAHL_WIEDERANLAUFVERSUCHE

255 Anzahl Warteprogramm: Anzahl Wiederan-laufversuche

0 255 SERVICE

91 DAUER_WARTEPROGRAMM 120 min Warteprogramm: Dauer

1 65534 SERVICE

100 KUNDENSPEZIFISCH_OEM_0 0 Kundespezifisch: OEM 0

0 65535 OEM


0 65535 OEM

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Para

-m

eter



Zugriffs-ebene


0 65535 OEM


0 65535 OEM


0 65535 OEM

105 KUNDENSPEZIFISCH_BE-TREIBER_0

0 Kundespezifisch: Betreiber 0

0 65535 BETREIBER



0 65535 BETREIBER



0 65535 BETREIBER



0 65535 BETREIBER



0 65535 BETREIBER

230 RESERVIERT_BETRIEBSART_BRENNSTOFF

0 Reserviert: Betrieb-sart Brennstoff

0 255 BETREIBER

240 RESERVIERT_OEM_0 0 Reserviert: OEM 0 0 65535 OEM241 RESERVIERT_OEM_1 0 Reserviert: OEM 1 0 65535 OEM242 RESERVIERT_OEM_2 0 Reserviert: OEM 2 0 65535 OEM243 RESERVIERT_OEM_3 0 Reserviert: OEM 3 0 65535 OEM244 RESERVIERT_OEM_4 0 Reserviert: OEM 4 0 65535 OEM245 RESERVIERT_BETREIBER_0 0 Reserviert: Betreiber

00 65535 BETREIBER

246 RESERVIERT_BETREIBER_1 0 Reserviert: Betreiber 1

0 65535 BETREIBER


0 65535 BETREIBER


0 65535 BETREIBER


0 65535 BETREIBER

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www.dungs.com

Karl Dungs GmbH & Co. KGSiemensstraße 6–10D-73660 Urbach, GermanyTelefon +49(0)7181-804-0Telefax +49(0)[email protected]

Manual MPA 5111 - Valve de gaz · Manual MPA 5111 Nr. 254 722 - GB Edition: 02.14 GB. ... Fuse MPA...

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Transcript of Manual MPA 5111 - Valve de gaz · Manual MPA 5111 Nr. 254 722 - GB Edition: 02.14 GB. ... Fuse MPA...